nuclear@1: /************************************************************************************
nuclear@1: 
nuclear@1: Filename    :   OVR_OSX_DeviceManager.h
nuclear@1: Content     :   OSX specific DeviceManager header.
nuclear@1: Created     :   March 14, 2013
nuclear@1: Authors     :   Lee Cooper
nuclear@1: 
nuclear@1: Copyright   :   Copyright 2013 Oculus VR, Inc. All Rights reserved.
nuclear@1: 
nuclear@1: Use of this software is subject to the terms of the Oculus license
nuclear@1: agreement provided at the time of installation or download, or which
nuclear@1: otherwise accompanies this software in either electronic or hard copy form.
nuclear@1: 
nuclear@1: *************************************************************************************/
nuclear@1: 
nuclear@1: #ifndef OVR_OSX_DeviceManager_h
nuclear@1: #define OVR_OSX_DeviceManager_h
nuclear@1: 
nuclear@1: #include "OVR_DeviceImpl.h"
nuclear@1: 
nuclear@1: #include "Kernel/OVR_Timer.h"
nuclear@1: 
nuclear@1: #include <IOKit/hid/IOHIDManager.h>
nuclear@1: #include <CoreGraphics/CGDirectDisplay.h>
nuclear@1: #include <CoreGraphics/CGDisplayConfiguration.h>
nuclear@1: 
nuclear@1: 
nuclear@1: namespace OVR { namespace OSX {
nuclear@1: 
nuclear@1: class DeviceManagerThread;
nuclear@1: 
nuclear@1: //-------------------------------------------------------------------------------------
nuclear@1: // ***** OSX DeviceManager
nuclear@1: 
nuclear@1: class DeviceManager : public DeviceManagerImpl
nuclear@1: {
nuclear@1: public:
nuclear@1:     DeviceManager();
nuclear@1:     ~DeviceManager();
nuclear@1: 
nuclear@1:     // Initialize/Shutdown manager thread.
nuclear@1:     virtual bool Initialize(DeviceBase* parent);
nuclear@1:     virtual void Shutdown();
nuclear@1: 
nuclear@1:     virtual ThreadCommandQueue* GetThreadQueue();
nuclear@1:     virtual ThreadId GetThreadId() const;
nuclear@1:     
nuclear@1:     virtual DeviceEnumerator<> EnumerateDevicesEx(const DeviceEnumerationArgs& args);
nuclear@1: 
nuclear@1:     virtual bool  GetDeviceInfo(DeviceInfo* info) const;
nuclear@1: 
nuclear@1: protected:
nuclear@1:     static void displayReconfigurationCallBack (CGDirectDisplayID display,
nuclear@1:                                                 CGDisplayChangeSummaryFlags flags,
nuclear@1:                                                 void *userInfo);
nuclear@1:   
nuclear@1: public: // data
nuclear@1:     Ptr<DeviceManagerThread> pThread;
nuclear@1: };
nuclear@1: 
nuclear@1: //-------------------------------------------------------------------------------------
nuclear@1: // ***** Device Manager Background Thread
nuclear@1: 
nuclear@1: class DeviceManagerThread : public Thread, public ThreadCommandQueue
nuclear@1: {
nuclear@1:     friend class DeviceManager;
nuclear@1:     enum { ThreadStackSize = 32 * 1024 };
nuclear@1: public:
nuclear@1:     DeviceManagerThread();
nuclear@1:     ~DeviceManagerThread();
nuclear@1: 
nuclear@1:     virtual int Run();
nuclear@1: 
nuclear@1:     // ThreadCommandQueue notifications for CommandEvent handling.
nuclear@1:     virtual void OnPushNonEmpty_Locked()
nuclear@1:     {
nuclear@1:         CFRunLoopSourceSignal(CommandQueueSource);
nuclear@1:         CFRunLoopWakeUp(RunLoop);
nuclear@1:     }
nuclear@1:     
nuclear@1:     virtual void OnPopEmpty_Locked()     {}
nuclear@1: 
nuclear@1: 
nuclear@1:     // Notifier used for different updates (EVENT or regular timing or messages).
nuclear@1:     class Notifier  
nuclear@1:     {
nuclear@1:     public:
nuclear@1: 
nuclear@1:         // Called when timing ticks are updated. // Returns the largest number of microseconds
nuclear@1:         // this function can wait till next call.
nuclear@1:         virtual UInt64  OnTicks(UInt64 ticksMks)
nuclear@1:         { OVR_UNUSED1(ticksMks);  return Timer::MksPerSecond * 1000; }
nuclear@1:     };
nuclear@1:  
nuclear@1:     // Add notifier that will be called at regular intervals. 
nuclear@1:     bool AddTicksNotifier(Notifier* notify);
nuclear@1:     bool RemoveTicksNotifier(Notifier* notify);
nuclear@1: 
nuclear@1:     CFRunLoopRef        GetRunLoop()
nuclear@1:     { return RunLoop; }
nuclear@1:     
nuclear@1:     void                Shutdown();
nuclear@1: private:
nuclear@1:     CFRunLoopRef        RunLoop;
nuclear@1: 
nuclear@1:     CFRunLoopSourceRef  CommandQueueSource;
nuclear@1:     
nuclear@1:     static void staticCommandQueueSourceCallback(void* pContext);
nuclear@1:     void commandQueueSourceCallback();
nuclear@1: 
nuclear@1:     Event               StartupEvent;
nuclear@1:     
nuclear@1:     // Ticks notifiers. Used for time-dependent events such as keep-alive.
nuclear@1:     Array<Notifier*>    TicksNotifiers;
nuclear@1: };
nuclear@1: 
nuclear@1: }} // namespace OSX::OVR
nuclear@1: 
nuclear@1: #endif // OVR_OSX_DeviceManager_h